HTML Entity Encoder / Decoder
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Convert special characters to safe HTML entities, or decode entities back to readable text. Choose named or numeric output to prevent broken markup and protect against cross-site scripting in user-generated content.
Runs in your browser. Nothing is uploaded.
How the HTML Entity Tool Works
- Choose a mode, Encode to escape characters, Decode to restore them.
- Pick output type, named entities for readability or numeric for full Unicode coverage.
- Optional full escaping, encode every non-ASCII character for maximum compatibility.
- Copy the result, paste safe markup into your HTML, CMS, or templates.
Why Entity Encoding Matters
- Prevents XSS, escaping user input stops injected scripts from running.
- Fixes broken layouts, raw < and & characters can break parsing and display.
- Safe attributes, encoding quotes keeps attribute values from terminating early.
- Portable content, numeric entities render reliably across encodings and email clients.
Next steps
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HTML Entity Encoder / Decoder: FAQ
What are HTML entities?
HTML entities are codes that represent characters with special meaning in HTML, such as less-than, greater-than, ampersand, and quotes. Writing them as entities like < and & tells the browser to display the character instead of treating it as markup.
Why do I need to encode HTML?
Encoding prevents content from breaking the page layout and stops cross-site scripting (XSS). Any user-supplied text shown in a page should be HTML-encoded so that injected tags or scripts render as harmless text rather than executing.
What is the difference between named and numeric entities?
Named entities use readable names like © for the copyright sign. Numeric entities use a number, such as © (decimal) or © (hex). Named entities are easier to read, while numeric entities work for any character including obscure symbols.
Which characters must always be encoded?
In page content, encode ampersand (&), less-than (<), and greater-than (>). Inside attribute values, also encode double and single quotes. Encoding these prevents both display bugs and security issues.
Does this tool decode entities back to characters?
Yes. Decode mode converts named, decimal, and hexadecimal entities back into their original characters so you can read or reuse encoded content.
Will it handle emoji and non-Latin characters?
Yes. In numeric mode you can encode any Unicode character, including emoji and non-Latin scripts, and decoding restores them correctly.
Is my text sent to a server?
No. Encoding and decoding run entirely in your browser. Nothing you paste is uploaded to Web Aloha servers.
Is this HTML entity tool free?
Yes. It is free, private, requires no signup, and works on desktop and mobile.
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